Laser cutting equipment for metal plate machining

Abstract

The invention discloses laser cutting equipment for metal plate machining, and relates to the technical field of laser cutting. According to the laser cutting equipment for metal plate machining, through cooperation of the bottom bearing disc, the connecting plate frame and the positioning plate frame, in the cutting process, after the positioning plate frame makes contact with a metal plate, the positioning plate frame can continuously move downwards along with the bottom bearing disc, pressure is applied to the positioning plate frame, and fixing of the metal plate is completed; the metal plate cutting device is simple in structure and convenient to operate, metal plates are adsorbed and locked through the multiple negative pressure suction cups, the cutting accuracy of the metal plates is effectively improved, meanwhile, during cutting, the positions of the metal plates of different sizes can be conveniently adjusted, manual intervention is not needed, the cutting stroke of the device is increased, and the application range of the device is further widened.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and particularly to a laser cutting device for processing metal sheets. Background Art

[0002] Laser cutting equipment uses a high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature and evaporated to form holes. As the beam moves relative to the material, the holes continuously form a very narrow slit, completing the cutting process of the material. Referring to the Chinese patent with the publication number "CN119237916B", "A Metal Sheet Cutting and Processing Equipment", this patent points out that existing equipment will generate metal liquid slag during the cutting process. Part of the metal liquid slag falls on the vertical sword grid bars, and the remaining part passes through the sword grid bars and falls below the sword grid bars. Due to the spacing of the sword grid bars, it is difficult to clean below the sword grid bars. However, this equipment still has problems such as poor cutting effect and small application range. For this reason, we propose a laser cutting device for processing metal sheets to solve the above problems. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a laser cutting device for processing metal sheets, which solves the problems raised in the above background art.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A laser cutting device for processing metal sheets includes a machine body. Inside the machine body, a conveyor belt is rotatably connected, and the conveyor belt is used to convey metal plates. Above the machine body, there is a laser cutter, which is used to perform horizontal and vertical translations above the metal plate to achieve the cutting operation of the metal plate;

[0005] On both sides of the top surface of the machine body, concave frames are fixedly installed, and a driving frame is connected above the concave frames. Inside the driving frame, a limit slot is opened, and a driving disc frame is slidably connected inside the limit slot. A bottom receiving disc is slidably connected up and down at the bottom of the driving disc frame. The laser cutter is fixed directly below the bottom receiving disc. Inside the driving disc frame, a driving cylinder is fixed, which is used to drive the bottom receiving disc and the laser cutter to slide downwards;

[0006] Driving members are provided between the concave frame and the driving frame, and between the driving frame and the driving disc frame, which are used to drive the driving disc frame to perform horizontal and vertical translations;

[0007] On both sides of the bottom of the bottom receiving disc, connection plate frames are slidably connected. At both ends of the connection plate frames, connection shaft rods are slidably connected, and a positioning plate frame is fixedly connected to the end of the connection shaft rod. The positioning plate frame is used to fix the metal plate as the bottom receiving disc moves downwards;

[0008] A plurality of mutually connected negative pressure suction cups are fixedly installed at the bottom of the positioning plate frame. The negative pressure suction cups are used to adsorb and fix the metal plate and adjust the cutting position of the metal plate.

[0009] Preferably, the positioning plate frame and the connection plate frame can maintain relative sliding through the cooperation of the connection shaft rods, and the positioning plate frame and the connection plate frame always remain parallel.

[0010] Preferably, a plurality of telescopic sleeve rods are fixedly connected between the bottom receiving tray and the driving disc frame for extending when the bottom receiving tray moves downward.

[0011] Preferably, the piston end of the driving cylinder body is fixedly connected to the middle position of the top surface of the bottom receiving tray.

[0012] Preferably, an arc-shaped limiting frame is fixedly installed on the top surface of the connection plate frame. Transmission sliders are fixedly installed on both sides of the bottom of the bottom receiving tray. The transmission sliders are slidably connected inside the corresponding arc-shaped limiting frames, and a return spring is fixedly installed between each transmission slider and the inner wall of the corresponding arc-shaped limiting frame.

[0013] Preferably, a communication pipeline is connected between the plurality of negative pressure suction cups. A negative pressure device is fixedly installed above the bottom receiving tray, and the communication pipeline is in mutual communication with the negative pressure device.

[0014] Preferably, support springs are sleeved on the outer sides of the plurality of connection shaft rods.

[0015] Preferably, a cleaning and collecting assembly is provided inside the machine body for cleaning and collecting the slag generated during the cutting process.

[0016] Preferably, the cleaning and collecting assembly includes a cleaning scraper. A collecting groove opening is formed inside the machine body. The cleaning scraper is fixedly installed inside the collecting groove opening. The installation position of the cleaning scraper is below the conveyor belt and is in mutual contact with its bottom. A plurality of material leakage groove openings are formed inside the conveyor belt.

[0017] Preferably, a plurality of positioning rods are fixed between the cleaning scraper and the collecting groove opening.

[0018] The present invention provides a laser cutting device for metal sheet processing. Compared with the prior art, it has the following beneficial effects:

[0019] (1) The laser cutting equipment for metal sheet processing, through the cooperation of the bottom receiving tray, the connecting plate frame and the positioning plate frame, during the cutting process, when the positioning plate frame contacts the metal plate and then continuously moves down with the bottom receiving tray, it presses on the positioning plate frame to complete the fixation of the metal plate, and adsorbs and locks the metal plate through multiple negative pressure suction cups, effectively improving the cutting accuracy of the metal plate. At the same time, during cutting, it can facilitate the position adjustment of metal plates of different sizes without manual intervention, increasing the cutting stroke of the equipment and further improving the cutting effect and application range of the equipment.

[0020] (2) The laser cutting equipment for metal sheet processing, through the setting of the cleaning component, during the cutting process of the equipment, the slag can enter the inside of the collection slot through the slag leakage slot to complete the collection. At the same time, when the conveyor belt runs, it can scrape off the slag adhering to the outer surface of the conveyor belt through the cooperation of the cleaning scraper, further improving the maintenance convenience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the sectional structure of the body of the present invention;

[0023] Figure 3 is of the present invention Figure 2 the enlarged schematic diagram of part A in;

[0024] Figure 4 is of the present invention Figure 2 the front view schematic diagram;

[0025] Figure 5 is a schematic diagram of the driving disc frame of the present invention;

[0026] Figure 6 is of the present invention Figure 5 the sectional schematic diagram;

[0027] Figure 7 is of the present invention Figure 6 the enlarged schematic diagram of part B in;

[0028] Figure 8 is a schematic diagram of the sectional structure of the positioning plate frame of the present invention.

[0029] In the figure: 1. Machine body; 2. Conveyor belt; 201. Leakage trough opening; 3. Metal plate; 4. Concave frame; 5. Driving frame; 501. Limit trough opening; 6. Collection trough opening; 7. Cleaning scraper; 701. Positioning rod; 8. Driving disc frame; 9. Driving cylinder block; 10. Bottom receiving plate; 1001. Telescopic sleeve rod; 11. Connecting plate frame; 1101. Arc-shaped limit frame; 1102. Transmission slider; 1103. Return spring; 12. Positioning plate frame; 1201. Negative pressure suction cup; 1202. Connecting pipeline; 13. Connecting shaft rod; 1301. Support spring; 14. Laser cutter; 15. Negative pressure device. Detailed implementation manners

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-8 , the present invention provides two technical solutions, specifically including the following embodiments:

[0032] Embodiment 1:

[0033] A laser cutting device for processing metal plates includes a machine body 1. A conveyor belt 2 is rotatably connected inside the machine body 1. The conveyor belt 2 is used to convey the metal plate 3. The conveyor belt 2 is an existing device and is driven by a separate motor, which is not shown in the figure. A laser cutter 14 is provided above the machine body 1. The laser cutter 14 is used to perform horizontal and vertical translations above the metal plate 3 to realize the cutting operation of the metal plate 3;

[0034] The laser cutter 14 is an existing device for realizing the cutting operation of the metal plate 3, and will not be elaborated here;

[0035] Both sides of the top surface of the machine body 1 are fixedly provided with concave frames 4, and a driving frame 5 is connected above the concave frames 4. A limit trough opening 501 is opened inside the driving frame 5, and a driving disc frame 8 is slidably connected inside the limit trough opening 501. The bottom of the driving disc frame 8 is slidably connected up and down with a bottom receiving plate 10. The laser cutter 14 is fixed directly below the bottom receiving plate 10. A driving cylinder block 9 is fixed inside the driving disc frame 8, which is used to drive the bottom receiving plate 10 and the laser cutter 14 to slide downwards;

[0036] Driving members are provided between the concave frame 4 and the driving frame 5 and between the driving frame 5 and the driving disc frame 8, which are used to drive the driving disc frame 8 to perform horizontal and vertical translations;

[0037] Specifically, the driving member is an existing device, not shown in the figure. Specifically, it is an existing chain drive, which drives the driving frame 5 to complete longitudinal translation above the concave frame 4 in the form of a chain, and drives the driving disc frame 8 to complete lateral translation inside the limit notch 501. The driving method between the chain and the driving disc frame 8 is realized by using an existing sprocket for cooperation, which will not be elaborated here.

[0038] During operation, as the driving member drives the driving frame 5 to perform longitudinal translation, the longitudinal position of the laser cutter 14 can be adjusted. As the driving disc frame 8 performs lateral translation inside the limit notch 501, the lateral position of the laser cutter 14 can be adjusted, enabling the laser cutter 14 to perform longitudinal and lateral translation above the metal plate 3 to achieve cutting operations.

[0039] The driving cylinder body 9 is an existing cylinder, which is used to drive the bottom receiving plate 10 and the laser cutter 14 to move downward, so that the laser cutter 14 can contact the metal plate 3.

[0040] Both sides of the bottom of the bottom receiving plate 10 are slidably connected with connecting plate frames 11. Both ends of the connecting plate frames 11 are slidably connected with connecting shaft rods 13, and the ends of the connecting shaft rods 13 are fixedly connected with positioning plate frames 12. The positioning plate frames 12 are used to fix the metal plate 3 as the bottom receiving plate 10 moves downward.

[0041] A plurality of mutually connected negative pressure suction cups 1201 are fixed at the bottom of the positioning plate frame 12. The negative pressure suction cups 1201 are used to adsorb and fix the metal plate 3 and adjust the cutting position of the metal plate 3.

[0042] During cutting, as the driving cylinder body 9 operates, it can drive the bottom receiving plate 10 and the laser cutter 14 to move downward. At this time, the connecting plate frames 11 and the positioning plate frames 12 can move downward with the bottom receiving plate 10 until the positioning plate frame 12 first contacts the metal plate 3 to complete the fixing operation of the metal plate 3.

[0043] The positioning plate frame 12 and the connecting plate frame 11 can maintain relative sliding through the cooperation of the connecting shaft rod 13, and the positioning plate frame 12 and the connecting plate frame 11 always remain parallel.

[0044] A plurality of telescopic sleeve rods 1001 are fixedly connected between the bottom receiving plate 10 and the driving disc frame 8, which are used to extend when the bottom receiving plate 10 moves downward.

[0045] The piston end of the driving cylinder body 9 is fixedly connected to the middle position of the top surface of the bottom receiving plate 10.

[0046] The top surface of the connecting plate frame 11 is fixedly installed with an arc-shaped limiting frame 1101. On both sides of the bottom of the bottom receiving plate 10, transmission sliders 1102 are fixedly installed. The transmission sliders 1102 are slidably connected inside the corresponding arc-shaped limiting frames 1101. A return spring 1103 is fixedly installed between the transmission sliders 1102 and the inner walls of the corresponding arc-shaped limiting frames 1101;

[0047] A communication pipe 1202 is connected between multiple negative pressure suction cups 1201. Above the bottom receiving plate 10, a negative pressure device 15 is fixedly installed. The communication pipe 1202 is in mutual communication with the negative pressure device 15;

[0048] Support springs 1301 are sleeved on the outer sides of multiple connecting shaft rods 13;

[0049] When the positioning plate frame 12 contacts the metal plate 3 and then the bottom receiving plate 10 continues to move downward, pressure is applied to the positioning plate frame 12, enabling multiple support springs 1301 to be compressed until the laser cutter 14 moves downward to the cutting position. At this time, the metal plate 3 is fixed through the positioning plate frame 12, and through the operation of the negative pressure device 15, multiple negative pressure suction cups 1201 complete the adsorption and locking of the metal plate 3. At this time, the driving member drives the driving frame 5 to move longitudinally, enabling the laser cutter 14 to perform longitudinal cutting along with the driving frame 5. At this time, the transmission slider 1102 can slide along the corresponding arc-shaped limiting frame 1101, compressing the return spring 1103, effectively improving the cutting accuracy of the metal plate 3. At the same time, during cutting, the position of the metal plate 3 with different sizes can be adjusted without manual intervention, increasing the cutting stroke of the equipment and further expanding the applicable range of the equipment;

[0050] Specifically, when the position of the metal plate 3 needs to be adjusted during the cutting process, through the operation of the negative pressure device 15, the adsorption of the metal plate 3 can be completed through the cooperation of the negative pressure suction cups 1201. Then, through the operation of the driving member, the bottom receiving plate 10, the positioning plate frame 12, and the metal plate 3 can be driven to make horizontal and longitudinal adjustments until the pressure is released after the position adjustment is completed;

[0051] Specifically, a pressure relief valve is provided inside the communication pipe 1202 for performing pressure relief operations. The pressure relief valve is not shown in the figure;

[0052] Specifically, the connection between the communication pipe 1202 and the negative pressure device 15 is a corrugated expansion pipe to avoid affecting the horizontal and longitudinal translation of the equipment.

[0053] Embodiment 2: Based on Embodiment 1, a laser cutting device for metal sheet processing includes a machine body 1. Inside the machine body 1, a conveyor belt 2 is rotatably connected. The conveyor belt 2 is used to convey the metal plate 3. The conveyor belt 2 is an existing device and is driven by a separate motor, which is not shown in the figure. Above the machine body 1, there is a laser cutter 14, which is used to perform horizontal and vertical translations above the metal plate 3 to achieve the cutting operation of the metal plate 3;

[0054] The laser cutter 14 is an existing device used to achieve the cutting operation of the metal plate 3, which will not be elaborated here;

[0055] On both sides of the top surface of the machine body 1, concave frames 4 are fixed, and a driving frame 5 is connected above the concave frames 4. Inside the driving frame 5, a limiting slot 501 is opened, and a driving disc frame 8 is slidably connected inside the limiting slot 501. The bottom of the driving disc frame 8 is slidably connected up and down with a bottom receiving disc 10. The laser cutter 14 is fixed directly below the bottom receiving disc 10. Inside the driving disc frame 8, a driving cylinder 9 is fixed, which is used to drive the bottom receiving disc 10 and the laser cutter 14 to slide downwards;

[0056] Driving members are provided between the concave frame 4 and the driving frame 5 and between the driving frame 5 and the driving disc frame 8, which are used to drive the driving disc frame 8 to perform horizontal and vertical translations;

[0057] Specifically, the driving member is an existing device, not shown in the figure. Specifically, it is an existing chain-type drive. By means of a chain, the driving frame 5 is driven to complete vertical translation above the concave frame 4, and the driving disc frame 8 is driven to complete horizontal translation inside the limiting slot 501. The driving method between the chain and the driving disc frame 8 is achieved through the cooperation of existing sprockets, which will not be elaborated here.

[0058] During the operation, as the driving member drives the driving frame 5 to perform vertical translation, the vertical position of the laser cutter 14 can be adjusted. As the driving disc frame 8 horizontally translates inside the limiting slot 501, the horizontal position of the laser cutter 14 can be adjusted, so that the laser cutter 14 can perform vertical and horizontal translations above the metal plate 3 to achieve the cutting operation;

[0059] The driving cylinder 9 is an existing cylinder, which is used to drive the bottom receiving disc 10 and the laser cutter 14 to move downwards, so that the laser cutter 14 can contact the metal plate 3;

[0060] On both sides of the bottom of the bottom receiving disc 10, connecting plate frames 11 are slidably connected. Both ends of the connecting plate frames 11 are slidably connected with connecting shaft rods 13, and the ends of the connecting shaft rods 13 are fixedly connected with positioning plate frames 12. The positioning plate frames 12 are used to fix the metal plate 3 as the bottom receiving disc 10 moves downwards;

[0061] A plurality of interconnected negative pressure suction cups 1201 are fixed to the bottom of the positioning plate frame 12. The negative pressure suction cups 1201 are used to adsorb and fix the metal plate 3 and adjust the cutting position of the metal plate 3;

[0062] During cutting, as the driving cylinder block 9 operates, it can drive the bottom receiving tray 10 and the laser cutter 14 to move downward. At this time, the connecting plate frame 11 and the positioning plate frame 12 can move downward with the bottom receiving tray 10 until the positioning plate frame 12 first contacts the metal plate 3 to complete the fixing operation of the metal plate 3;

[0063] The positioning plate frame 12 and the connecting plate frame 11 can maintain relative sliding through the cooperation of the connecting shaft rods 13, and the positioning plate frame 12 and the connecting plate frame 11 always remain parallel;

[0064] A plurality of telescopic sleeve rods 1001 are fixedly connected between the bottom receiving tray 10 and the driving disc frame 8 for extension when the bottom receiving tray 10 moves downward;

[0065] The piston end of the driving cylinder block 9 is fixedly connected to the middle position of the top surface of the bottom receiving tray 10;

[0066] An arc-shaped limiting frame 1101 is fixedly installed on the top surface of the connecting plate frame 11. Transmission sliders 1102 are fixedly installed on both sides of the bottom of the bottom receiving tray 10. The transmission sliders 1102 are slidably connected inside the corresponding arc-shaped limiting frames 1101, and reset springs 1103 are fixedly installed between the transmission sliders 1102 and the inner walls of the corresponding arc-shaped limiting frames 1101;

[0067] A communication pipeline 1202 is connected between the plurality of negative pressure suction cups 1201. A negative pressure device 15 is fixedly installed above the bottom receiving tray 10, and the communication pipeline 1202 is interconnected with the negative pressure device 15;

[0068] Support springs 1301 are sleeved on the outer sides of the plurality of connecting shaft rods 13;

[0069] When the positioning plate frame 12 comes into contact with the metal plate 3 and continues to move downward with the bottom receiving tray 10, pressure is applied to the positioning plate frame 12, enabling multiple support springs 1301 to be compressed until the laser cutter 14 moves downward to the cutting position. At this time, the metal plate 3 is fixed through the positioning plate frame 12, and through the operation of the negative pressure device 15, multiple negative pressure suction cups 1201 complete the adsorption and locking of the metal plate 3. At this time, the driving member drives the driving frame 5 to move longitudinally, enabling the laser cutter 14 to perform longitudinal cutting along with the driving frame 5. At this time, the transmission slider 1102 can slide along the corresponding arc-shaped limiting frame 1101, compressing the return spring 1103, effectively improving the cutting accuracy of the metal plate 3. At the same time, during cutting, the position of the metal plate 3 with different sizes can be adjusted without manual intervention, increasing the cutting stroke of the equipment and further expanding the applicable range of the equipment;

[0070] Specifically, when the position of the metal plate 3 needs to be adjusted during the cutting process, through the operation of the negative pressure device 15, the adsorption of the metal plate 3 can be completed through the cooperation of the negative pressure suction cups 1201. Then, through the operation of the driving member, the bottom receiving tray 10, the positioning plate frame 12, and the metal plate 3 can be driven to make horizontal and longitudinal adjustments until the pressure is released after the position adjustment is completed;

[0071] Specifically, a pressure relief valve is provided inside the connecting pipe 1202 for performing pressure relief operations;

[0072] Specifically, the connection between the connecting pipe 1202 and the negative pressure device 15 is a corrugated expansion pipe to avoid affecting the horizontal and longitudinal translation of the equipment;

[0073] A cleaning and collection assembly is provided inside the machine body 1 for cleaning and collecting the slag generated during the cutting process;

[0074] The cleaning and collection assembly includes a cleaning scraper 7. A collection trough opening 6 is formed inside the machine body 1. The cleaning scraper 7 is fixedly installed inside the collection trough opening 6. The installation position of the cleaning scraper 7 is below the conveyor belt 2 and is in mutual contact with its bottom. A plurality of material leakage trough openings 201 are formed inside the conveyor belt 2;

[0075] A plurality of positioning rods 701 are fixed between the cleaning scraper 7 and the collection trough opening 6;

[0076] Through the setting of the cleaning assembly, during the cutting process of the equipment, the slag can enter the inside of the collection trough opening 6 through the material leakage trough openings 201 to complete the collection. At the same time, when the conveyor belt 2 is running, the slag adhered to the outer surface of the conveyor belt 2 can be scraped off through the cooperation of the cleaning scraper 7, further improving the maintenance convenience of the equipment.

[0077] At the same time, the content not detailedly described in this specification belongs to the well-known prior art of those skilled in the art.

[0078] The above has described in detail an embodiment of the present invention, but the above content is only a preferred embodiment of the present invention and should not be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the application of the present invention should still fall within the scope covered by the present invention.

Claims

1. A laser cutting device for metal sheet processing, comprising a body (1), characterized in that: A conveyor belt (2) is rotatably connected inside the machine body (1), and the conveyor belt (2) is used to transport the metal plate (3). A laser cutter (14) is provided above the machine body (1), and the laser cutter (14) is used to perform horizontal and vertical translation above the metal plate (3) to achieve a cutting operation on the metal plate (3); A concave frame (4) is fixed on both sides of the top surface of the machine body (1), and a driving frame (5) is connected above the concave frame (4); a limiting slot (501) is provided inside the driving frame (5), and a driving disc frame (8) is slidably connected inside the limiting slot (501); a bottom receiving disc (10) is slidably connected to the bottom of the driving disc frame (8); the laser cutter (14) is fixed directly below the bottom receiving disc (10); a driving cylinder (9) is fixed inside the driving disc frame (8) for driving the bottom receiving disc (10) and the laser cutter (14) to slide downward; A driving member is provided between the concave frame (4) and the driving frame (5) and between the driving frame (5) and the driving disc frame (8), for driving the driving disc frame (8) to perform lateral and longitudinal translation; Both sides of the bottom of the bottom receiving plate (10) are slidably connected to a connecting plate frame (11), both ends of the connecting plate frame (11) are slidably connected to a connecting shaft rod (13), and the end of the connecting shaft rod (13) is fixedly connected to a positioning plate frame (12), and the positioning plate frame (12) is used to fix the metal plate (3) as the bottom receiving plate (10) moves downward; A plurality of mutually connected negative pressure suction cups (1201) are fixed at the bottom of the positioning plate frame (12), and the negative pressure suction cups (1201) are used to absorb and fix the metal plate (3) and adjust the cutting position of the metal plate (3).

2. The laser cutting device for metal sheet processing according to claim 1, characterized in that: The positioning plate frame (12) and the connecting plate frame (11) can maintain relative sliding through the cooperation of the connecting shaft rod (13), and the positioning plate frame (12) and the connecting plate frame (11) always remain parallel.

3. The laser cutting device for metal sheet processing according to claim 1, characterized in that: A plurality of telescopic sleeve rods (1001) are fixedly connected between the bottom receiving plate (10) and the driving plate frame (8) and are used to extend when the bottom receiving plate (10) moves downward.

4. The laser cutting device for metal sheet processing according to claim 1, characterized in that: The piston end of the driving cylinder (9) is fixedly connected to the middle position of the top surface of the bottom receiving plate (10).

5. The laser cutting device for metal sheet processing according to claim 1, characterized in that: An arc-shaped limit frame (1101) is fixedly installed on the top surface of the connecting plate frame (11), and transmission sliders (1102) are fixedly installed on both sides of the bottom of the bottom receiving plate (10), and the transmission sliders (1102) are slidably connected to the inside of the corresponding arc-shaped limit frame (1101), and a return spring (1103) is fixedly installed between the transmission slider (1102) and the inner wall of the corresponding arc-shaped limit frame (1101).

6. The laser cutting device for metal sheet processing according to claim 1, characterized in that: A connecting pipe (1202) is connected between the plurality of negative pressure suction cups (1201), a negative pressure device (15) is fixedly installed above the bottom receiving plate (10), and the connecting pipe (1202) and the negative pressure device (15) are connected to each other.

7. The laser cutting device for metal sheet processing according to claim 1, characterized in that: The outer sides of the plurality of connecting shafts (13) are all sleeved with supporting springs (1301).

8. The laser cutting device for metal sheet processing according to claim 1, characterized in that: A cleaning and collecting component is provided inside the machine body (1) for cleaning and collecting the slag generated during the cutting process.

9. The laser cutting device for metal sheet processing according to claim 8, characterized in that: The cleaning and collecting assembly comprises a cleaning scraper (7), a collecting slot (6) is provided inside the machine body (1), the cleaning scraper (7) is fixedly installed inside the collecting slot (6), the installation position of the cleaning scraper (7) is located below the conveyor belt (2) and is in contact with the bottom thereof, and a plurality of material leakage slots (201) are provided inside the conveyor belt (2).

10. The laser cutting device for metal sheet processing according to claim 9, characterized in that: A plurality of positioning rods (701) are fixed between the cleaning scraper (7) and the collecting notch (6).

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